Hello JohnQSmith,
I am sorry for late response.
You can’t change images for toolbar buttons. However, you could write a macro with your favorite icon. For example, the following code will work as “Find Prevoius” command with the Calculator icon.
#icon = "C:WINDOWSsystem32calc.exe",0
document.selection.FindRepeat(eeFindRepeatPrevious);
The find toolbar can’t be placed under the editor.
Thank you!